Git alias:
assume = update-index --assume-unchanged
assume-all = "!git st -s | awk {'print $2'} | xargs git assume"
assumed = !"git ls-files -v | grep ^h | cut -c 3-"
unassume = update-index --no-assume-unchanged
unassume-all = "!git assumed | xargs git update-index --no-assume-unchanged"
Sometimes we want to change a file in a repo, but never check in your edits.
We can’t use .gitignore because the file is tracked. We use update-index.
If you interact with big corporate projects, such as projects in Subversion, then you might run into the need to ignore certain files which are under Subversion control, yet you need to modify them but not commit. The assume-unchanged flag comes to the rescue.
Suppose we want to edit the file “passwords.txt” and also be sure that we never check it in.
Example:
git status
modified passwords.txt
modified foo.txt
git assume passwords.txt
git status
modified foo.txt
git assumed
passwords.txt
git unassume passwords.txt
git status
modified passwords.txt
modified foo.txt
Thanks http://durdn.com/blog/2012/11/22/must-have-git-aliases-advanced-examples/
Thanks http://blog.apiaxle.com/post/handy-git-tips-to-stop-you-getting-fired/